Bobbin-stripper.



G. W. RAMSEY.

BUBBIN STRIPPER. APPLIOKTION FILED APR.19, 1909.

1,081,914. Patented Dec. 16, 1913.

' Enuenfoz Q/Vitnzsom D STATES PATENT 0 i GEORGE W. RAMSEY, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOB TO RICHARD WALWORTH, OF WALTIIAM, MASSACHUSETTS.

BOBBIN STBIPPER.

Specification of Letters Patent.

Patented Dec. 16, 1913.

To all whom it may concern:

Be it known that I, GEORGE W. Ramsey, residing at Washington, in the District of Columbia, have invented certain new and useful Improvements in BobbinStrippers, of which the following is a specificatlon.

This invention relates broadly to the weaving art and specifically to mechanism for stripping threads from bobbins. In a feeler loom equipped with an automatic filling-supplying mechanism the bobbin is discharged from the shuttle before the yarn is completely used up in order that the loom will never be running with an empty shuttle. The bobbin which has been discharged from the shuttle therefore still retains a short length of thread thereupon, and this thread must be removed before the bobbin can be rewound.

Prior to this invention devices for removing this thread, havo consisted of mechanisms comprising a number of metallic fingers which were adapted to grasp the bobbin in a longitudinal direction and to strip the thread from the bobbin by drawing the same between the metallic fingers. This operation brings unnecessary wear upon the bobbin itself, and therefore it is soon destroyed.

In my invention instead of using a mechanism for grasping the bobbin itself I employ a series of longitudinal horizontally, in

clined stripper rolls upon which the bobbins are adapted to lie. These rolls preferably are arranged in airs and are adapted to be revolved inwar ly in such manner as to grasp the loose ends of the threads and unwind the same from the bobbin after which the bobbin passes out over the end of the machine, into any convenient receptacle. This in vention is susceptible of structural h ng without departing from the scope thereof, but a preferred form will be hereinafter specifically described by reference to the drawing which forms a part of this specification and the scope of the invention will be indicated by the claims.

In the accompanying drawings in which like numerals represent like parts throughout the several figures; Figure 1 is a longitudinal sectional elevation taken on line A--A of Fig. 2. Fig. 2 is a transverse elevated section taken on line B--B of Fig. 1. Fig. 3 is adetail showing the drive mechanism for the rolls. Fig. 4 is a detail of the be closely in contact with the other. rolls 11 are power driven by means of a f power belt 26 passing around a pulley 24 in pine shaft (1 and the cross belt 4 connecting 1e rolls 22 are not ower driven but are rojtated by frictional mechanism for vibrating the partition between the rolls.

This device as herein illustrated consists of a series of pairs of rolls, which are inclined with reference to their horizontal length and which are adapted to be rotated one toward the other.

Referring more particularly to Fig. 2 the rolls 1-1 are respectively composed of a steel shaft aa covered with a soft rubber covering bb. Adjacent the rolls 1-1, are wooden rolls 22. The rolls l--1 and 22 are set in the machine in such manner as Ito T 1e pulleys 3.3 on the shafts or-a. The

1 1 contact with the rolls The partition 5 between the sets of rolls performs a double purpose. This artition is formed with a V-shaped top, and its opposite sides 6-6 are concaved and closely conform to the curvature of the rolls 22. The rubber rolls are also surrounded on nearly one halfof their curvature by the side pieces 7-7 whlch are firmly attached to the casing 8. The effect of the inclines or bevcls of the upper portion of the side pieces 7-7 and of the partition 5, is to form troughs the bottom of which are completed by the rolls 1--1 and 22. The bobbins 9 are dropped upon the rolls near the head board 10 at the upper end of the troughs and fall into the bottom of the same. The ends of the loose threads on the bobbins falling upon the rolls are carried between the same and thus the bobbin is unwound. As the rolls l--1 and 22 strip the thread from the bobbin the said bobbin will be rotated by the unwinding of the thread thereon, and will revolve u on the two rolls 11 and 22. The roll 2 cing formed of wood permits the bobbin to revolve with less friction than if both rolls were formed of rubber. As the thread passes down through the stripper rolls it falls upon the apron 11 and hence out of the machine, in the form of waste. After the thread has been stripped from the bobbin, the bobbin moves in a longitudinal direction toward the lower end of the machine and drops off the end of the rolls into any suitably provided receptacle.

lib

ln order to assist in causing the bobbins to fall upon the rolls, such that their longitudinal direction is parallel with the rolls, and also, to provide a suficient vibration to assist the tree bobbin to be carried out oi the machine, the partition 5 is arranged to be reciprocated in a longitudinal direction. The partition 5 may be formed with its parts 66 extending over rolls 22 to such extent that the said parts always will be in contact with a portion of the bobbin which rests at the bottom of either trough. The partition is supported by the straps l2 and 13 which project from its end through'open ings in the metallic plates ill and 15. The strap 13 is provided with a head 16 having therein a slot 17 receiving the crank 18 which is formed on the shaft l9 and driven by the pulley 20, operatively connected with the smaller drive wheel 22 by means of the belt 21. The pulley 22 is carried upon the shai 23 which also carries a pulley 2%, which is located at the point in which the belt crosses upon itself, thus the pulley 2d will be driven by frictional contact with the belt t.

The operation of the device is as follows: The rolls 1--l are revolved and by frictional cont-act they in turn drive rolls 2-2. The partition 5 is reciprocated in a longitudinal direction. The machine being in motion. the bobbins are poured into the machine against thehead board 10. Because all the reciprocating movement or the partition and the fact that the rolls are inclined, the bobbins assume a direction such that they lie parallel to the stripper rolls. As they are revolving upon the stripper rolls any loose thread will be carried between the rolls and grasped thereby, in such manner as to pull the thread positively ofif from the bobbin. Alter thread has been completely unwound. the bobbin being free, it travels down the longitudinal rolls and out of. the machine.

it will be seen that this invention forms "a positive means for stripping the thread from the bobbin without in any manner whatsoever injuring the bobbin itself.

It will also be seen that one machine will do the work necessary to take care of the bobbins oi a large number of looms.

It is within the scope cl my invention that more than two pair of rolls may be formed into a single machine and also witha in the scope of my invention to reciprocate the rolls in a longitudinal direction'instead oil reciprocating the partition 5, or as an alternative ll may reciprocate both the partition and the rolls in an endwise direction. lit is also possible to vary the structure of the stripper rolls by using felt or cloth in the place of rubber on the rolls 1 or by forming the rolls 1 oil a steel shaft having a roughened or corrugated surface.

As many changes could be made in the ins ore above structure and many, widel difl'erent embodiments of this invention cou d be made without departing from the scope thereof, the definite matter contained in the above description and shown in the accompanying drawings is to be taken asillustrative and not a limiting sense.

l also desire it to be understood that the cover all generic featuresot this invention herehu described and allstatements of the scope of the invention, which asa matter of language might fall therebetween.

T claim as my invention l. A bobbin stripper comprising a frame,

means for forming the sides of troughs, and a series oi pairs of inclined stripper rolls, forming the bottom of said troughs, and means for driving said rolls, substantially as described. a 2. bobbin stri per comprising a llrame, a pair or longitu mal inclined rolls, members adapted to extend upwardly from said rolls and to form a trou h, the bottom of which is closed by said rolls, said trough being movable endwise.

1 bobbin stripper comprising a frame containing rolls of substantially the same diameter in frictional contact with each other, said rolls being inclined to the horizontal, andmeans for advancing the bobbins along the rollers and removing said bobbins said rolls.

ill. bobbin stripper comprising a frame aim ng longitudinally inclined rolls arin pairs, said pairs being so arated 1 a eciprocating partition, substantially as describe i 5. bobbin strtipper comprising inclined rolls upon which the bobbins are adapted to lie, for operating said rolls and means for causing theloobbins to assume a direction substantially that of said rolls.

i l bobbin stripper comprising a "frame, udinally inclined rollers mounted in arms, and members having a portion surface adapted to conform to a of said rolls, and another portion of their surface to form a trough the bottom of is formed by said rollers.

in a bobbin stripper a trams, means carr'ed by said frame forming the sides of a inclined stripper rolls forming the ob ain or said trough, andmeans for opersaid stripper rolls, substantially as described. g 55. bobbin stripper comprising a frame, stri' per rolls carried by said frame, means ior operating said rolls, substantially as described.

9, A bobbin stripper comprising a frame, stripper rolls carried by said frame, means operating said stripper rolls, mechanism said bobbins to be removed from said stripper rolls, said mechanism comprisone member of language used in-the claims is intended to lot) Illlb ing a movable member and means for operating said movable member, substantially as described.

10. A bobbin stripper comprising a frame, stripper rolls carried by said frame, means for operating said stripper rolls, an inclined head-board for deflecting the bobbins as they are introduced at one end of the stripper rolls, and means for causing said bobbins to travel longitudinally of said rolls and to be ejected from the machine at the end of the rolls opposite said head-board, substantially as described.

11. A bobbin stripper comprising a frame, means carried by said frame to form the sides of troughs, stripper rolls at the bottom of said troughs, a head-board, and means for causing bobbins which are introduced into the machine near the head-board to be ejected from the machine at the end opposite said head-board.

12. A bobbin stripper comprising a frame, stripper rolls carried by said frame, means for operating said stripper rolls, a headboard near one end of said rolls, means for causing the bobbins to be removed from said stripper rolls, the construction and arrangement of parts being such as to cause bob- 14. A bobbin stripper comprising a frame, a

stripper rolls carried by said frame, means for directing the bobbins against one end of said stripper rolls, means for causing the bobbins to be removed from the opposite ends of said stripper rolls, and means for operating said stripper rolls.

15. A bobbin stripper comprisin a series of stripper rolls arranged 1n in ependent pairs, movable means separating the pairs of rolls, said means being arranged and adapted to cause the bobbins to be removed from said stripper rolls and means for operating both the stripper rolls and the movable means.

GEORGE W. RAMSEY.

In the presence of-- L. C. RUPPERT, Emmsr F. RILEY. 

